Grand Lake (Millpond)

Green Lake County, Wisconsin

OverviewFacts & Figures

Physical Characteristics

Surface Area (Acres)242
Maximum Depth (ft)8
Mean Depth (ft)3
Shoreline (miles)—
Bottom Composition80% sand, 5% gravel, 1% rock, 14% muck
Water Clarity — Secchi Depth (ft)—
Trophic Status—
Drainage BasinDRAINAGE
Lake Classflowage
Public Access—
Township—
GPS Coordinates43.68940° N, 89.12190° W
WBIC (DNR ID)161100

Fish Species

4 species documented

AbundantCommonPresentRare
SpeciesAbundanceLast Survey
Largemouth BassPresent—
Northern PikePresent—
PanfishPresent—
WalleyePresent—

Boat Landings

1 landing

NameTypeRampTrailersFee♿
Grand Lake AccessRAMP—16-20NoNo

Invasive Species

Invasive species have been documented in or near this lake. Please clean, drain, and dry all watercraft and equipment before leaving to prevent spread.

SpeciesStatusFirst Detected
Curly-Leaf PondweedConfirmed—
Eurasian Water-MilfoilConfirmed—

Data sourced from Wisconsin DNR lake surveys. Last scraped: 4/29/2026.